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Seed applied fungicides a key part of best practice blackleg management


Australia
July 26, 2022
 


While secondary infection can occur through the season it is this early infection that can often lead to stem cankers and yield losses of up to 50 per cent.

Establishment diseases can cause significant setbacks for canola growers, if adequate precautions aren’t implemented between the choice of appropriate varieties, paddock rotation and often-overlooked seed coatings.

Where pythium and rhizoctonia continue to impact establishment in many parts, the rise of seedling blackleg has required growers and their advisors to consider new seed applied fungicide options.

Blackleg is caused by the fungus Leptosphaeria maculans, which survives on crop residue over summer, releasing spores in humid conditions at planting that can travel large distances to land on seedlings. While secondary infection can occur through the season it is this early infection that can often lead to stem cankers and yield losses of up to 50 per cent.

A best-practice management strategy should include crop rotations, selection of resistant varieties and use of a targeted seed treatment.

Growers who have previously used MAXIM® XL have achieved excellent control of rhizoctonia and Pythium. By packaging it with the new SDHI chemistry to control blackleg, Syngenta created SALTRO® Duo.

After extensive trials, in-house and alongside industry partners, Syngenta brought SALTRO® Duo to market in 2020.

The increased protection offered by SALTRO® Duo, which includes the unique SDHI chemistry pydiflumefen, is what allows the crop to develop at a more rapid rate, growing through that early period where canola is susceptible to blackleg infection. This is reducing seedling death and, in turn, reducing stem cankers later in the season.

"SALTRO® Duo helps crops reach their full potential by optimising seedling emergence, root development, early leaf protection and crop vigour,”

Syngenta Seedcare™ Portfolio Lead Katie Slade.

“It is providing a level of protection previously unseen, against early blackleg infection. The added benefit of MAXIM® XL creates an increased root mass through protection of lateral roots and fine root hairs from pythium and rhizoctonia damage - enhancing access to soil nutrients and moisture, resulting in healthy, vigorous crops.”

The development of the unique SDHI technology within SALTRO® Duo, variously known as Adepidyn® and pydiflumetofen, earned Syngenta the prestigious Agrow Crop Science Award for Best Crop Protection Product or Trait in 2020. The awards are contested by a who’s who of global agriculture science innovators.

For more information, speak to your local Syngenta representative.

 



More news from: Syngenta Australia


Website: https://www.syngenta.com.au

Published: July 26, 2022

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